07/24 Thru 07/31

Question 1

What is the formula for Force?

Answer 1

Force=pressure×area

Question 2

What are the 2 major areas of fluid power?

Answer 2

Pneumatic and Hydraulic

Question 3

All systems that use fluids but not for power shall be known as?

Answer 3

Fluid distribution systems

Question 4

What is a fluid?

Answer 4

A substance that will flow into the shape of its container and exert a pressure

Question 5

What is the difference between a liquid and a gas?

Answer 5

A liquid has a constant volume and a gases volume is determined by the pressure it is exposed to.

Question 6

A liquid subjected to force will?

Answer 6

Seek the path of least resistance

Question 7

What is Mass?

Answer 7

The measure of the amount of material in a body not affected by gravity.

Question 8

What is weight?

Answer 8

The pull of gravity on a body

Question 9

What is density?

Answer 9

The ratio of weight to volume

Question 10

What is specific gravity?

Answer 10

How many times heavier a particular substance is than an equal volume of water

Question 11

What is the unit of measure used to measure pressure?

Answer 11

Pounds per square inch (PSI)

Question 12

What is the pressure due to the weight of a column of fluid?

Answer 12

Head

Question 13

What is a vacuum?

Answer 13

Any pressure less than it’s surrounding atmospheric pressure.

Question 14

14.7 PSI or an atmosphere is how tall on a mercury Barrometer?

Answer 14

29.92 inches

Question 15

Flow through an orifice is determined by?

Answer 15

1. Size of an orifice
2. Viscosity or thickness of the fluid
3. Pressure drop

Question 16

What is the specific gravity of fresh water?

Answer 16

1 because the scale is based on fresh water

Question 17

When gas is absorbed into a liquid due to pressure it is called?

Answer 17

Gas solubility

Question 18

What are the 2 types of orifices?

Answer 18

Fixed and adjustable

Question 19

What is an orifice?

Answer 19

Any restricted passage in a pipe or valve used to restrict flow.

Question 20

What is pressure?

Answer 20

Force per unit area

Question 21

What determines the pressure of a column of fluid?

Answer 21

Height

Question 22

What is cavitation?

Answer 22

Formation and collapse of air bubbles caused by a pressure drop (gasses escaping the fluid)

Question 23

As volume decreases pressure will do what?

Answer 23

Increase

Question 24

Pressure to an enclosed fluid will be equally distributed to every wall of its container

Answer 24

Pascal’s law

Question 25

According to Charles’ law when the temperature of a fluid is increased so will the?

Answer 25

Volume of the fluid

Question 26

What are 3 ways to create pressure?

Answer 26

1. Pressure due to weight
2. Force applied to a confined fluid
3. Resistance to flow

Question 27

What is the pressure exerted by a 1 ft column of water?

Answer 27

.433 PSI

Question 28

The smallest particle of a substance that it can be divided into and maintain the characteristics of that substance

Answer 28

A molecule

Question 29

Due to the force of gravity a liquid in a container will always seek its?

Answer 29

Level

Question 30

What percentage of the volume hydraulic fluid is air?

Answer 30

10%

Question 31

What is an example of a fluid distribution system?

Answer 31

Coolant or grease